map_排序输出

#include "stdafx.h"


#include<map>
#include<string>
#include<iostream>
using namespace std;

struct CmpByKeyLength {
    bool operator()(const string& k1, const string& k2) {
        return k1.length() < k2.length();
    }
};
int main() {
    map<string, int,CmpByKeyLength > name_score_map;
    name_score_map["LiMin"] = 90; 
    name_score_map["ZiLinMi"] = 79; 
    name_score_map["BoB"] = 92; 
    name_score_map.insert(make_pair("Bing",99));
    name_score_map.insert(make_pair("Albert",86));
    for (map<string, int,CmpByKeyLength>::iterator iter = name_score_map.begin();iter != name_score_map.end();++iter) {
        string str     =iter->first;
        int i = iter->second;
        cout << str<<"->"<<i << endl;
    }
    getchar();
    return 0;
}